| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 9 |
0.2%
|
| 2 | Once a month | 11 |
0.3%
|
| 3 | 2-3 times a month | 48 |
1.2%
|
| 4 | Once a week | 13 |
0.3%
|
| 5 | 2-6 times a week | 14 |
0.3%
|
| 6 | Once a day | 1845 |
45.3%
|
| 7 | Twice or more a day | 2129 |
52.3%
|